Loom for weaving.



F. ALSINA.

LOOK FOR WEAVIKG. Arruonxon nun mm: 29, 19

905,830. Patented Dec. 8,1908.

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THE NORRIS FETERS ca, WASHINGTON, o. c.

F. ALSINA. LOOM FOR WEAVING. APPLIOATION FILED JUNE 29. 1907.

Patented Dec. 8, 1908.

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I. ALSINA. Loox FOB wmvme. APPLIOATIOK FILED IUIE 29, 1907.

Patented Dec. 8, 1908.

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FERNANDO ALSINA, OF BARCELONA, SPAIN.

LOOM FOR WEAVING.

Specification of Letters Patent.

Patented Dec. 8, '1908.

Application filedJune 29, 1907. Serial No. 381,543.

To all whom it may concern:

Be it known that I, FERNANDO ALSINA, a subject of the King of Spain residing at Barcelona, Spain, Calle Codols No. 16, have invented certain new and useful Improvements in Looms for Weaving; and I do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enable ot ers skilled in the art to which it appertains to make and use the same.

My invention has for its object a useful and efficient mechanism whereby the operating shuttle is automatically changed when exhausted. To this end the full shuttles are disposed one upon the other in a receptacle or hopper parallel to the shuttle box. This box, when in its foremost position, is in contact with the hopper and behind it a passage for the exhausted shuttles is provided.

When the weft-fork comes in operation because of the exhaustion of the weft thread, it roduces the change of the shuttle, the wa ls of the shuttle box are raised, a movable plate pushes forward the lower shuttle in the receptacle and throws it into the box, while the shuttle located in the latter is thrown into the outlet; after this the walls of the shuttle box are lowered again. All these operations take place precisely at the moment when the lathe moves forward to beat up the weft, so that when it reaches again the position in which a next weft thread is to be laid through the shed, a new or fresh full shuttle has been placed in the box, without stopping the loom. In order to effect these operations, the movable plate is connected by means of levers and springs with an oscillating tooth or finger which is moved by a cam mounted on a shaft controlled by the weft-stop motion. The swinging finger or tooth engages with a stopper carried by the lathe, so that when the weftfork becomes operative, said finger is in front of said stopper and when the lathe moves forward it pushes the finger and causes the movable plate to perform the change of the shuttle.

The same shaft controlled by the weftfork carries another cam intended to move a lever which moves an arm Whereb shaft is revolved, and this shaft y means another of arms and links, causes the walls of the shuttle box to go up and then down again to their former position, by their own weight and by the action of the spring.

The stopper of the lathe is maintained in proper position by a spring in order that it may be depressed in case that the movable late could not move forward, thus preventmg the breakage .of parts.

The accompanying drawings represent the mechanism of this invention as applied to a power loom.

Figure 1 is a vertical section on broken line 1-1 of the Fig. 3. Fig. 2 is a plan view of the same: Fig. 3 is a section on line -33 of Fig. 1 with the parts in the usual working position. Fig. 4 is a similar section with the parts in the osit-ion that they take when 0 anging the s u'ttle. Fig. 5 is a modification showing the mechanism when applied to a round picking motion loom.

The shuttle reservoir or hopper ccontains a number of shuttles -z located upon one another, so that the lower one is in line with the sliding plate -c of the shuttle box. The mechanism comprises a fixed part supported on a bracket a fastened to the frame of the loom, and a movable part mounted on the lathe n. The flat picking stick -n passes into an 0 ening nof the lathe. Upon the ate o there is the hopper c contaming the shuttles and the guide -.b for the slider c which carries the movable plate c intended to push the shuttles forward. On the projections -a of the plate -c is disposed a spindle for the rotary arm -ean the su port for the shaft k controlled by the we t-fork. The lathe carries a support i for the stopper i and a shaft 0 carrying links and arms p to move the walls of the shuttle box up an down.

The movable plate c is furnished with a leather lining or pad c and is moved by a slider c traveling through a guide -b which receives its motion from the arm emounted on the shaft -e suitably journaled on links -foscillating on the shaft The shaft e carries an arm d having a pin -h on the lower end to which is connected the arm h bearing the finger h adapted to operate the stopper -i mounted on the lathe n. I v

The arm h bears on the cam 7cmounted on the shaft 7c controlled by the weft-fork through a suitable mechanism not shown in the drawing, as it does not form a part of the present invention.

The size and form of the cam 7c are such that when coming in the position shown in Fig. 4, the finger h is raised in front of the stopper t' of the lathe. The arm h is furnished at the rear end with a spring intended to secure the downward motion when the cam 7c is inoperative, thus preventing engagement with stopper The stopper i may turn on the trunnion t' mounted on bearings i suitably secured to the lathe n. But stopper i projects upwards so high as to have its upper extremity caught by the spring -x, so that if when beating against t e finger h should the shuttle meet with such an obstacle that does not permit the change, the stopper i would be released by the action of the spring :c, thus preventing possible breakage of any operative pieces of the mechanism.

The shaft k carries a second cam 7c which engages with a curved arm l of a rotary lever mounted on the shaft Z and is suitably controlled by the spring mwhich tends to place it back to the position shown in Fig. 3, at times when the cam '7c does not act upon said lever. When the cam 7c is in the position shown in Fig. 4, it raises the lever Z so that the crank -gmounted on the shaft 0 passes from the position shown in Fig. 3 into the position shown in Fig. 4, and as the arms p are mounted on said shaft 0, they are also transferred from the osition shown in Fig. 3 to that shown in ig. 4. This motion is imparted through arms r and links W to the walls r of the shuttle-box which pass also from the position shown in Fig. 3 to that of Fig. 4, thus leaving a free way for the shuttle z to pass through and take the position -z the latter being then thrown into the outlet u by the pushing action of the movable plate -c The shaft 0 is journaled picking stick, (over-picking), I propose to use the mechanism shown in Fig. 5. In lieu of the arm r connecting the upper part of the walls r there are cross-bars -'r connecting them by their lower part.

The arms r}- as well as the cross-bars 1** are formed with two pieces connected together by a bolt in order to regulate the gistance of the walls r of the shuttle When the' weft-fork has terminated its action upon the shaft -7c, the two cams 7c 7c come back to their former position shown in Fig. 3, and conse uently the movable plate 0 is also rep aced to its former position; thereupon another shuttle descends into the casing -a the arm h is lowered and comes under the line of the stopper 7?- the lever Z- falls down and permits the arms qand p to fall therewith and finally the walls of the shuttle box take again the position shown in Fig. 3.

A flat spring -g fastened at its lower end by a bolt g and connected by a link g to an arm e-, throws said arm eto its former position as soon as no action is exerted by the stopper v?. The guide b bears a bolt -b to regulate the stroke of the movable plate c and to secure the proper position of the foremost wall -c in order to be always exactly in line with that of the hopper.

Having thus described my invention I declare that what I claim as new and desire to secure by Letters Patent, is:

1. In a loom the combination of a shuttle box movable up and down, a lathe on which the same is mounted and provided with a passage for the exhausted shuttles, a hopper for holding the full shuttles having passages through its walls mounted on said loom, a sliding plate operating through one of said passages, shaft 0 carrying the arm 1", a link connecting said arm to the walls of the shuttle box adapted to move said shuttle box up and down, means for turnin said shaft and means for operating said siding plate, substantially as described.

2. In a loom the combination of a shuttle box, a lathe on which the same is mounted and said box provided with a passage for the exhausted shuttles, a hopper provided with passages, a sliding plate operating through one of the same, a shaft 0 provided with the arms 1' 1, links connecting said arms and said shuttle box for moving the same up and down, an arm r also mounted on said shaft, means to operate said arm g, and means for operating said sliding plate, substantially as described.

3. In a loom the combination of a shuttle box, a lathe on which the same is mounted said box provided with a passage for the exhausted shuttles, a hopper provided with passages, a sliding plate operating through one of the same, a shaft 0 provided with the arms 7 1', links connecting said arms and said shuttle box for moving the same up and down, an arm galso mounted on said shaft, means consisting of the cam lever -Z to operate said arm q, and means for operating said sliding plate, substantially as described.

4. In a loom the combination of a shuttle box, a lathe on which the same is mounted said box provided with a passage for the exhausted shuttles, a hopper provided with passa es, a sliding plate operating through one o the same, a shaft -o provided with the arms 7" 1", links connecting said arms and said shuttle box for moving the same up and down, an arm q also mounted on said shaft, means consisting of the cam lever -l to operate said arm g, means for operating said sliding plate consisting of the lever e and its connecting mechanism, substantially as described.

5. In a loom the combination of a shuttle box, a lathe provided with a passage on which said part is mounted, a hopper the walls of said hopper being cut away to form passages, a sliding plate operating in one of said passages, a shaft 0, arms r r and q mounted on said shaft, links connecting said arms 1" r to said shuttle box, 'a cam lever Z adapted to operate said arm g, a shaft controlled by the weft fork to move said lever l, a lever e for operating said sliding plate, links for supporting said lever and connecting mechanism for operating the same, substantially as described.

6. In a loom the combination of a shuttle box, a lathe provided with a passage on which said part is mounted, the walls of said hopper being cut away to form passages, a sliding plate operating in one of said passages, a shaft -0-, arms 1* 1" and g mounted on said shaft, links connecting said arms r r to said shuttle box, a cam lever l adapted to operate said arm q-, a shaft controlled by the weft fork to move said lever Z., a lever for operating said sliding plate, links for supporting said lever, an arm on the lower end of said lever, a stopper on said lathe to operate said arm and lever, and connecting mechanism for operating the same, substantially as described.

7. In a loom the combination of a shuttle box, a lathe provided with a passage on which said part is mounted, a hopper the walls of said hopper being cut away to form passages, a sliding plate operating in one of said passages, a shaft -0, arms 1" r and g mounted on said shaft, links connecting said arms 1 r to said shuttle box, a cam lever Z adapted to operate said arm q-, a shaft controlled by the weft fork to move said lever l, a lever e for operating said sliding plate, links for supporting said lever, an arm on the lower end of said lever, a stopper on said lathe to operate said arm and lever, a cam also controlled by the weft fork to lift the arm to bring it in front of the stopper, a spring to force said arm out of line with the said stopper, and connecting mechanism for operating the same, substantially as described.

8. In a loom the combination of a shuttle box with a hopper, a lathe provided with a passage, the walls of said hopper being cut away to form passages, a slider comprising a sliding plate a, a shaft 0, arms 7 r and q attached to said shaft, links connecting said arms 1" 'r with said box, a'second shaft controlled by the weft fork, a lever Z mounted on said shaft and adapted to operate the lever g*, a lever e connected to said plate a, links for supporting said lever l, an arm on the lower end of said lever -e, a third shaft, a stopper on said third shaft, a spring for returning the same, a cam controlling the arm on the lever e, a spring also controlling said arm, a spring for controlling said shuttle box and a spring for controlling said slider, substantially as described.

9. In a loom the combination of a shuttle box and a hopper, a lathe provided with a passage, the walls of said hopper being cut away to form passages, a slider comprising a sliding plate 0, a shaft 0, arms r 1' and --g attached to said shaft, links connecting said arms 1" 1" with said box, bearings fixed on the frame, a second shaft controlled by the weft fork, and mounted in said bearings, a lever Z mounted on said shaft and adapted to operate the lever --q, a lever e connected to said plate 0, links for supporting said lever -Z, an arm on the lower end of said lever e a third shaft, a stopper on said third shaft, a spring for returning the same, a fourth shaft controlled by the weft fork, a cam, mounted on the same, controlling the arm on the lever ea spring also controlling said arm, a bolt to regulate the backward stroke of said slider, a spring'for controlling said shuttle box and a spring for controlling said slider, substantially as specified.

In testimony whereof, I affix my signature, in presence of two witnesses.

FERNANDO ALSINA.

Witnesses:

JEWRUN BOHLOW, STANLEY C. HARRIS. 

